873 FXUS65 KVEF 052007 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 107 PM PDT Sat Jul 5 2025 .KEY MESSAGES... * Temperatures will continue to warm through the first half of the week as a ridge of high pressure pushes into the region. Extreme heat products may be needed for portions of the area by mid-week. && .DISCUSSION...through next week. High-pressure ridging will continue to push into the area from the southeast through the weekend and into the first part of the week. Temperatures will continue to warm an average of 1 to 2 degrees each day as 500mb heights build to around 597dm by Wednesday. The latest NBM guidance has trended a bit warmer, and as a result, areas of major Heat Risk are now appearing across the lower Colorado River and central and southern Mohave County. If current trends continue, Extreme Heat products may be needed for Wednesday. Any extreme heat is expected to be short-lived, as heights are expected to begin falling by Thursday as a shortwave trough moves into the Great Basin. There is a fair amount of uncertainty regarding the strength of the wave, but it should allow temperatures to cool by a few degrees by the end of the week. The cool-off will be short-lived, and another ridge will build into the desert southwest next weekend, and the strength and position of this ridge will determine how much temperatures can rebound. && .AVIATION...For Harry Reid...For the 18Z Forecast Package...Breezy and at times gusty south to southwesterly winds are expected into early this evening. Gusts should generally remain less than 20 knots, although there is a non-zero chance of seeing one to two reach 25 knots. Winds decrease to 8 knots or less by late evening and are expected to remain at or below these levels through tomorrow afternoon. VFR conditions with clear skies will prevail through Sunday. Temperatures will exceed 100 degrees between 22Z and 03Z both this afternoon and again tomorrow afternoon. For the rest of southern Nevada, northwest Arizona and southeast California...For the 18Z Forecast Package...Conditions at the Las Vegas area Terminal will be similar to those described above for Harry Reid. Elsewhere across the region, breezy conditions are forecast this afternoon and early evening before winds fall below 10 knots after sunset. The expected will be KDAG, with occasional gusts of up to 20 knots persisting into the early morning hours. Most sites will see winds of 10 knots or less tomorrow. Once again, the exception will be across the western Mojave Desert, including KDAG, where a few gusts of 15 to 20 knots are possible. VFR conditions will prevail through Sunday. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION...Planz AVIATION...Planz For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter